Plunger
HT400 Plunger — 4.5寸
- Catalogue reference number
- Not recorded
- Catalogue brand
- Not recorded
Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.

Original designation: HT400 柱塞---4.5寸G-316.23085
Catalogue model references
These are retained catalogue associations, not confirmed fitment for your equipment. Choose the model you want to review.
Catalogue specification records
| Original field | Recorded value |
|---|---|
| Size | 4.5寸 |
Catalogue description records
This is a plunger sized for the HT400 mud pump, supplied as an aftermarket replacement part. A plunger is the polished reciprocating element of a plunger-pump fluid end; the high-pressure seal is made by stationary packing around the plunger rather than by a seal on the plunger itself. It is sized 4.5 inch to match the pump. The HT400 model number is given for identification only and does not imply original-manufacturer production.
A plunger is the polished reciprocating element of a plunger pump fluid end; the high-pressure seal is made by stationary packing around the plunger rather than by a seal on the plunger itself.
Catalogue question records
Original catalogue questions are retained. Fitment and availability need technical review.
- Which pump does this plunger fit?
- It is sized for the HT400 mud pump as an aftermarket replacement part.
- What does a plunger do?
- It is the polished reciprocating element of the fluid end; the high-pressure seal is made by stationary packing around the plunger, not by a seal on the plunger itself.
- What size is it?
- It is sized 4.5 inch to match the HT400 pump.
Check the original reference
Search original filenames and model text here. Check part numbers inside the PDF. No associated model is selected or shortened automatically.
Prepare a review checklist
Entries on this page are not sent or saved automatically. Copy and save them before leaving.
Starts blank. Catalogue or manual quantities are not copied into your request.
Nothing has been sent.
Technical review & contact
Include the nameplate, original part number, manual page and the quantity you need. Check the original request before sending.